Servo issues

This week, I pulled out the Blu Baby 33 to get my fingers ready to fly. When I checked the control surfaces, the rudder would react uncontrollably when the stick was held hard right. The servo would push hard right, go to center, go hard right, center, etc.

I had seen this behavior on a different receiver but not with this one. I had the suspect receiver still in a box, with a note that it had been pulled from the BB33 with a suspect rudder channel.  Receiver replaced with a brand new Futaba 617 which then showed the same issue. 

Servo changed, problem solved.